ground state latest polls show former massachusetts governor mitt romney and former senator rick santorum neck in neck. romney has a big lead in a number of delegates obtained in primaries and caucuses so far thanks to deep pockets and campaign machine. but he has been unable to take a commanding lead. last week he managed a narrow victory over santorum in his home state of michigan. about 0% of all delegates will be at stake in the supertuesday contests. rick santorum is posing a big threat to romney in conservative stronghold states such as tennessee. the recent standoff between the catholic church and the obama administration over the birth control policy seems to be working to santorum's advantage. >> reporter: rick santorum is gaining ground and momentum in conservative areas across america. he claims the obama administration is limbing the freedom guaranteed to citizens by the u.s. constitution. >> we can't give it away because we go to the heart of whether -- >> reporter: last month president obama announced a federal policy that requires employer health insurance plans to offer fr

and allow international nuclear inspects near the country. >>> mitt romney will likely walk away the big winner from the u.s. republican party super tuesday contests. the former massachusetts governor won six of the ten states up for grabs on the single biggest day for the republican presidential nomination. former pennsylvania senator rick santorum secured three. but romney narrowly won ohio which is considered important in his fight to lock up the gop nomination. people in ten states voted for the gop candidate they wanted to face off against barack obama in this november's presidential election. one fifth of the delegates to the republican convention this august were on the line. abc says romney is certain it win six states, alaska, ohio, virginia, vermont, massachusetts and idaho. ohio is politically divided and considered to be a key battleground in november's election. >> i'm not going to let you down. i'm going to get this nomination. >> abc says the ultra conservative santorum is certain to win three states, tennessee, oklahoma and north dakota. former speaker of the u.s. house o

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